(Full score: 100, examination time: 100 minutes)

Question No.12345 Total Score Additional Question Final Total Score Evaluation Grade

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1. Fill in patiently, a good beginning is half the battle! (2 points for each small question, ***24 points)

The arithmetic square root of 1.4 is _ _ _ _.

2. In the rectangular coordinate system, the coordinates of the point where the point P (3 3,2) is symmetrical about the Y axis are.

3. The image of the inverse proportional function passes through the point (2).

4. In, the irrational number is.

5. The range of the independent variable x of the function is.

6. At the same time, the height of a bamboo pole is 2 meters, the shadow length is 3 meters, and the shadow length of a tall building is 30 meters, so the height of this building is meters.

7. The weather forecast says that the highest temperature today is 7 degrees Celsius and the lowest temperature is -2 degrees Celsius, so today's temperature range is degrees Celsius.

8. On the map of Quanzhou with the scale of 1:2000000, the distance between A and B is 2 cm, so the actual distance between the two places is kilometers.

9. According to the figure 1, the slope I of a dam slope protection is 1: 1, so the slope angle α of the slope protection is degrees.

10. Figure 2 is a fan-shaped statistical chart of the books in a school library. If the school library has 50 thousand books, then the text

There are thousands of books about sports.

1 1. The value of the image that conforms to the proportional function of y decreases with the increase of the value of x, please write the functional relationship that satisfies the above conditions.

12. In the reading materials on page 105 of the textbook, we saw the beautiful and wonderful Pythagoras tree.

As shown in Figure 3, connect right-angled triangles on a square, and then make a square with the right-angled side as the side length.

Form, repeat the same process, let the maximum square side length be 5, square A, square B,

If the sum of the areas of square C, square D and square E is S, then S =.

Choose carefully and don't make mistakes here! (3 points for each small question, *** 18 points)

13. The following operation is correct ()

A.B. C. D。

14. There are two red balls and two yellow balls in the box, which are the same size and texture. After stirring, pull out a ball, put it back to stir, and then pull out a second ball. The probability of only taking out two yellow balls is ().

A.b.c.d is unpredictable

15. The image of the known linear function is shown in Figure 4, so at this time, the value range of y is ().

A.y>0 B.y